Created Issue: [AvalonDock 2.0.0858] AnchorablesSource not support ObservableCollection [15267]

public class DockingManagerService
{
...
public ObservableCollection<ToolPaneVMBase> Tools { get; private set; }
...
}

<a:DockingManager AnchorablesSource="{Binding Path=Tools}" >

When add item to Tools the item not add in to DockingManager.